Transfer mechanism for looms



Nov. 11 1930. H. M. JEFFREY 1,731,514

7 TRANSFER MECHANISM FOR LOOKS Filed Sept. 17. 1927 5 Shets-Shqet 1 INVENTOR. V M/fl /;fl7

A TTORNEY.

TRANSFER MECHANISM FOR LOOMS Filed Sept. 17, 1927 5 Sheets-Sheet 2 INVENTOR. 77

A TTORNEY.

Nov. 11, 1930. H. M. JEFFREY TRANSFER MECHANISM FOR LOOMS Filed Sept. s Sheets-Sheet ll (A INVENTOR.

WM 4W ATTORNEY.

Patented Nov; 11, 1930 zienennfivrqnrrnny, on iunrnnnn; misssnenrr snri's gnssxenen ro PATENT PBpTEe- Tron ceerone'r enj or LOWELL, MASSACHUSETTS; A co'nrolmmon or MASSACHU- sews rnmsrnn MEeHAms ron icer/rs d Ap'plication filed September17, 11927. Serial N0.;2 20,14 3.

This invention relates to transfer mechanism for autolnatic leomeofthe type wherein r on to the whenthe threecl on albobbinis almost exlmusted, the empty or nearly empty bobbin 5 is forced out of the shuttle bye full bobbm circular teen, anal ere successivelycarried around into snitableposition over the shuttle by the batteryyanclietthe appropr ate tune i all mer.

Such transfer;cbyiouslyrnust occuron the battery side of the loombut in mqst cases, I in looms as new constructed,- the feeler f mechanism Which5ee1s the three cl on "the bobbin and cletern ines thetime of transfer is on the side o'ithe 100m qppositethe battery. This feeler mechanism is pessiye or operates in a certain ay until the feelertip inr lieates that the filling on the bobbin in. theshuttleat the side of the loom opposite the betteryis ehnost egihens'tect lvhenfthis" esters; intheztermsef the trade, itintlieetes V y i iiefct re s towthepivotetl transfer tlegsuclnrlog transferbut thetranszter doesnetoccuruntil ii: the shuttle returns tethe battery side of the l e-mn Where and when the nearly empty bebbin. pushed out by a fullbobbinthrough the dperation of the transfer mechanism.

c There aretypesiof feelers anclltrensferde i vices yell ofiwhielrmpermte ontli e battery "sijde etthe leem bntnthese are very eemplit y r y y H 0 r y l l l the almost empty bobbm with a new one from Gated Us y As there is es mneh mechan sm onan autotgrna' tic. L lQGHL it isghlghly cleslrable that 'thls igreeter according to the greater number of parts.

thetype iflt i it h-1 h th s ev e is,

piyete tl transfer in What is known ese battery, usually of lthesnormiil p 1 K? fercedput "(if the bettryl encl into the I iittle by What is known as a transfer ham pffliej b t t 1 f, the ill? should besimplified because; likeliheqcl it of feilure te 'eperetejand breakage etc. 1s

the hafnimerl clown Oh to a run; bobbin in the b zittery, which bobbin-is ei'etycled down pearly empty bobbin in the shuttle anclrepleee'f" V The prineipl e bf such devices is that the (leg normally heng s dpwn blp y the dagger, end is 'only brought up iiitpipqsitienwhen sniteble feele'r mechanism centrblletl bythe amehnt of we on thebbbbin, lifts it into position. y

The y'principle of this device is ilOllttVG "ion of the lpiyote'cl transfer ch that it weulcl engage the dagger eyeryteet up of the lziybeam iffitjyes'not mtivedbnt of pesition 'bysuitztble mecha- I. This mechanis includes an armwhichenga es the shiittle binder en the sitle ef 'the Idem eppcsitethe ba-ttery and is connected w J4 t. ,1 r. !i 1 fer clog in such manner that Whenever the shuttle enters the box on the sigle opp bsite "the i'clbg is thereby ihevecl ut ef the dagger. I *yery time the lay bezhn beets up With the; shiittle on the battery side, by my fei-e fail to funetimnthe advancing (la'gger on the lay beam engages the transfer (109; and causes the transfer hammer to replace the battery;

By my arrangement of cooperating parts,

1 L w l l whenmyrletector hngeremlshcle are pushed ferwarcl by the advancing lay b'eamwrhen the flngeris inrentect With a bdbbin 011 which there is sufiicrentfillmg: to hold the finger ihits "ner nml "pesition, Ipreter to nsesueh zr'clirectcennection from the slide to the log that, es rthe shcle moves back, the nose e'ftheclog will move downto escalpethe dag ger. This action eontinnes untiltheyarlten bobbin hes been reduced to e predeterpoint. When that pdhitis teaehithe detector finger suddenly turns sideways on its pivot and as the'slide does not move back, the dog is left in position to be struck a powerful blow by the dagger.

' I directly connect the slide with the dog in such manner that when this happens, the

blow is transmitted to the slide which is thrown forward enough to move the detector finger out of the shuttle so-that it is not in i the way. of the incoming full bobbin. By the time it has been brought back by the detector slide spring, the transfer has been made...

The advantages of my device are that as minimum I; prefer to make my finger tip of some ma'terialsuch as fiber and to form it with a well'rounded heel onthe edge-towards the head of the bobbin, this heel extending around so that it practically engages the wood of the bobbin when the yarn in front ofit is exhausted, orso that actually may not preventthe whole finger from turning away from the head. Beyond the heel; are

In the drawings, Fig. 1 V view showing mydevice attachedto aDra-per' loom so-called showing only suclr'partsof the loomas seem'necessary, and with parts 1 ,backor forward toward the front of the strike one or two strands of yarn: whichfw ill teethor toes which actually engage the yarn when there is an'y 'onthe bobbin, such yarn; preventingthe tip from swinging away from" the bobbin head as it does when the yarnisf' exhausted, the fingerfbeing so pivoted that it is kept slightly off center by; a. suitable? stop;

fiber or similar material rather than metal, as evena slight scratch is h ghly objection-1; able'where silk, rayon or s1m1larfinefiber compositions are concernedi broken awayfor clearness. 1

. IFig. .Z'is aside. elevation of my-transfer ineclian-i sm'sliowing the position of theparts I as the lay-starts to beat up'.

I 'f beingpushed backiwhen in contact with "co T 111g. 7 Fig, lisa view-from theoppos1 V Fig. Qbut show ng the feeler incontact w1th .f a bobbin and the dog depressed.

3 isa plan view of Fig,;2.

Fig. 5 is aplan view of theireel'er and slide 1 full bobbin.

.-' 61S an enlarged plan view'of the feeler ijfillgel" tip, V

F1g.. me

with .an empty or almostempty is a perspective te'side of lT j l the i n .3 of pivoted atj'lfi to a stud onone'side of dog fi which is preferablyaggreater distance'from V theicenter ofthe hammer pivot 1210 than is the jc'enterof thepiv ot420 for 'thedog itself pl aniview [showing the position of the feeler, in the sl de when In; contact;

Fig. 8 is an elevation enlarged showing de- J tails of construction of the pivot of the feeler finger.

' Fig. 9 isa view similar to Fig. '2 but show-' ing the feeler finger in contact with an almost hammer has just forced in a full bobbin and forced out an empty bobbin.- 5

In the drawings I show such parts of an vice. I v V V 40 represents the, breast beamgforming part usual manner: Toitis pivoted'at 120 the "transfer hammer '20 which )has the usual heads or;,other'suitable devices 220 for forc- This transfer hammer also has an operating 'arm 320 which entendsdownwardas shown,

andto this is pivoted at 420 atransferdOg 6 whichautomaticallyisheld up by a tension spring '12'so that its nose 6A will normally-be in position so that the dagger Scarried bythe' I 'lay' beam21 would normally engage it and? as its upward"pivotallinovement is limited by Istop' 1112,.theforward motion of the lay beam will force'back arm 320 and therefore'down- 7 Ward the head'220 ifthedog 6 or'its nose ger YA represents a detector bed whichusuautomatic or bobbin'changing loom as seem". necessaryforan understanding of this de- V so of the frame ofltheloom which carries at one end, as shown, the circular battery 41 f which is filled with the full bobbins .18 in the inga bobbin such as 18 out of thebattery and pushing down through the shuttle 22 an empty ibobbin or almost empty', bobbin 17 v a I g r H *SAW'asnotmQVed out of'the wayfof dag- If perfectly made,- the smooth heel only; i v will come in contact with the'wood. of-lthe bobbin but to prevent thepossibility of the] teeth scratching the bobbin, I prefer to use.

normally held down by atension spring 19.

The above parts are allsubstantially old. i

forward and back .movementf This slide 7 7 B isia'detector slide-slidable in or onde-.,: tector bedAin suitable ways in a direction whenTmove'dback projects and willmove i.

loom, and .is'shown as extending beyond dedescribed. There isalso 'anadJuStingsCreW 10 by whichkthe position of slide" 113 can ,be more-or less regulated' v connecting'ro'd F is Y so that 'asthe dog and-arm SQO move back, this connectingrod Wlll move over "a greater are than the nose 6A as indicated by the arcs showninflFig; 2. a

At the side of the 100m opposite batter 1-1 is a shuttle binder 260i any usual form adapted-to be pushed somewhat ontwhen the a shuttle enters the box 'on thatside, anchG represents broadly the connectionbetween this side of the loom and dog 6. As-shown,

stud or roller 15 which projects from dog 6 on the opposite sidefrom stud 16. a

It will be seen that'when connecting rod F is pushed toward the front of the loom, or

when shuttle binder 126 is pushed in that direction by the entry of a shuttle, in either case dog6 will'bepulled down on its pivot 420 so that its nosetiA will. be out of the way of dagger 8. Shuttle binder 26 will act on each. alternate pick and I will now describe my detector device on the side of the battery. C represents a detectorfinger pivoted at one end onpivot 101 to the end of slide=B which is nextlto the lay beam, and this has a. shoulder 102 on what'I will call the inside of the loom-which is the side where the heads such as 118 of the bobbins are positioned in the magazine or battery. "Its free: end 107 curves away from the inside or from the head. of the bobbin when in position away fromthe center of therloomyand this end is provided on theside neXtsuchiheads with a smooth, rounded heel 104, and outside of such heeh that is awayfronrthe center of the loonnlthere are one or more teeth 103.

This end of the feeler" or detector finger C should be carefully made so that ene of these teethlOS Will e age the thread such as in iithere is am 1 the bobbin butwhen they come in COlltlCvlVllTll a place where thereis no thread K or where it very thin as at 170," "the teeth 103 will slip awayfromthe head of the bobbin withva result to be described.

Each finger C has on the inside a shoulder 10:2 which by means of a coiled spring 4 is 'keotinad'usted contactwith a sto 9 on J a i a slide B. The position of slice 9 can be'reeu lated by a: screw 109 so that as shown-in Fig.

the contact point of fin'gerC which is ordinarily the front and longest of the teeth 1031 'willf'enga e' the threadlConthe bobbin and -so tlu it 11s the lay bean; advances, this thread "willprevent the finger Otrom doubling up or bending toward the outside otthe loom and awayfrom the bobbin head 118 but will force be'for'e it finger C andslide B carrying with them theiconnecting rodF and depressing This occurs at every alternate pickuntil =the ainount of thread K is reduced to such a point, asindicated at 170 on the bobbin,

that, as teeth 103 find nothing to stop them,

"empty bobbin in a well known manner.

The provision of slot 13 allows the detector fingerto be so adjusted as to move in toward the bobbin as the yarn isunwound but so that except onthc detectorbeatythc movement of the slide transmitted through connecting rod F will pull down 5 the nose 6A of the dog 6 along the arc V- shown in Fig. 1 from the dotted line position tothc full-line position, the dog pivoting on the pivotlzZO, and also allows of the operationofmeans Gr atthe other side of 131161100111 to pullthe dog out of position onthe alternate picks. a

On looms wherethe detector mechanism is on the sideoppositethesbattery, it is not necessary to remove the feeler ti or leeler finger from contact with the nearlyi empty bobbin because the transfer 181101 made until the shuttle returns to thebattery side of the loom. i a y 1 lVith this device however it necessary to move thedetectorfinger out of theqyey oi theentering fullbobbin ()l'rlt wouldbc in danger of "breakage. I accomplish this by positioning the pivot point 16 ot connectinp; rod F andslide stud 14s fartherifroin :pivot- 120 of the transfer hammer than pivot point 4-20 or the dog andfarther than the dog nose 611 from 120 so that when the dag gel 8 begins toforce baclcthe dogG oniaccount of the greater:radlus the slide B and 1111"9196111018 a reatcr distance thanthe 1 b h a a dagger 8 moves and the free end or tip 104 is therefore pulled out of the way of the incoming tull bobbin. This relation shown by the-arcs X. and Y in Fi 2. i

I depend mainly howr tector finger C from the position shown in Fig. 9 at 107 to that showniat 507. Before it can return a new full bobbin is in place and whenthe finger C comes bacln-it comes back straight and the yarn on the bobbin prevents it a from slipping sideways. :The construction ofthe slide and feeler is more particularly described in the copending application filed by me Aug. 29, 1927 forbobbin transfer ieeler, Serial N's-216,201.

Preferablythe feeler fingerC iswery carefully'made of hard fiber and carefully ad justed so that' a line such as shown inc the r on the sudden a blow struck by the dagger 8 onthenose 6A flong dashes 0 of :Figs'ii and 6 passing through pivotv 101 in the same direction as the movement of the laybeamiwill pass back I of the front, which should'bethe longest,

of the teeth 103 between it and heel 104.

" These parts should be so adjusted that the front end-ofeach tooth 103 will engage some of: the fine'threads 180 but will not dig into the wood of the bobbin; whiie the following teeth are positioned slightly farther awz'ly from the-bobbin so that when teeler finger C" does pivot at 101 the teeth will swing away from the bobbin 17. as shown by the ares T.

' S and R.

I claim 1 "1, The combination-with aloom having a laybeam which carries a'dagger, and a breast beam on one end OfWlllCll 1s a battery for I by the dagger when the lay beam heats up; a

detectorbed'attachedto the breast beam ;la 'detector slide slidable therein in a direction sub-' stantially the same as the movement on": the

lay beam and carrying a slide stud; afslide return spring; a detector finger pivoted at onetend to the slide having a shoulderon the inside jandhaving its free end curved away; therefrom towards the outside of the loom, said end having on its inside a'smooth V 'connect on between the detector slide and the dog.

rounded heel and ending in teeth beyond said heel; an adjustable detector stop so carried.

by the slide as to engage said shoulder and to 1 keep thev finger normally in positionin which i said teethare out of aline through the finger pivot and perpendicular to the lay beam; a"

detector finger return spring; a connecting rod having at one end a slot through whichthe slide stud passes and at its other end connected 'to' said dog below its pivot; a shuttle binder at V the end ofthe lay beam opposite the battery andconnectiOns between said binder and dog wherebythe dog is removedj irom position; in front of said dagger-when the shuttle engages said binder. V 2. The combination with a loomhaving a;

' laybeam which carries a dagger, anda'breast V beam on oneend of which isabattery for V bobbins and a pivoted bobbin transfer ham mer operable' by-and' to which is pivoted a I dog;-of a 'dog spring and a dog stop in' posie tion to hold the dogin a-position to be struck by the dagger when the lay beam heats up;

: adetector bed attached to the breast beam; a

' detector slide slid-able therein in a direction substantially thesame asthe' movement of the i lay beam; a slide return'spring,;, a detector ea finger pivoted atone end to the slide having a shoulderon the inside and having its' free end curved-awaytherefrom towards the outi sidejot thelo'om, said end havingon' its inside a smoothrounded heel" and ending in 7 teeth beyon'd-saidheeladjustable detector stop der and to keep the finger normally in position inwhich said teeth are out of a line through the finger pivot and-perpendicular to the. lay beam; a detector finger return spring; a direct connection between the dc tector slide and the dog; and meansoperable when the'shuttle is in the box at the end of the lay beam opposite the battery to remove the dog from position in'front"otsaid1dag- '3. The comblnatlon with a loom having a lay beam whichcarries a dagger, and breast dog;of a dog spring-ancl-a dog Stop in pcsi so carried by the slide as to engage said shoultion to hold the dog in a position to be struck by the daggerwhen the lay beam beats up a detector bed attached to the breast beamy,

adetector slide slidable therein, in a direction substantially the same as the movement of the lay beam; aslide return spring; a detectorffinger having its free end curved towards the batterylaway from the center or the loom said. end having onits inside a smooth rounded heel ending in teeth beyond said heel, said finger being so pivoted tothe slide that the finger is normallyin position in which said teeth are out of a line throughits pivot on r the slide and perpendicular to the lay beam;

a detector finger return spring; anda direct 4;. The combination with a loom having a ieo lay beam which'carries a daggerrand abreast tion tonormally hold the dog in a position to be struck by the dagger when the laybeam beats up;.a detector; bed;-attacl1ed to the i breast beam; a detector slide slidable there in-in a directionsubstantiallythe same as the movement of the lay beam;- a slide return spring; a detector fingerhaving at its tree end a smooth rounded heelending in teeth be-' yond said heel; said'finger being so pivoted to the slide that the finger isno'rmally inposition in which. said teethare out ofa line through its pivot on the slide and perpendicularito the lay beam; a detector finger return spring; and a. direct connection between the detector slide and the dog.

]5.' The combination with aloom having a lay beam whiclrcarries a dagger, and a breast beamfion one end of which is a batter for bob- 7 i bins and a pivoted bobbin transfer hammer.

operable by. and'to whichis pivoted a depend ing dog; of a dog spring and dog stop in position to hold the dog in avpositionto be struck by the dagger'when.theilaybeam heats up adetectorbed attached to thebreast I beam; a detector slide slidablethereinin a. lat

lime 1 direction substantially the same as the movement of the lay beam; a slide return spring; a detector finger having at its free end a smooth rounded heel ending in teeth beyond said heel, said finger being so pivoted to the slide that the finger is normally in position in which said teeth are out of a line through its pivot on the slide and perpendicular to the lay beam; a detector finger return spring; and a direct connection between the detector slide and the dog comprising a connecting rod pivoted at one end to a pin on the dog and having at its other end a slot through which passes a pin. from the slide, said pins being so positioned that a line through them passes below the pivotal point of the dog.

6. The combination with a loom having a lay beam which carries a dagger and a breast beam on one end of which is a battery for bob bins and a pivoted bobbin transfer hammer operable by and to which is pivoted a depending dog; of a dog spring and a dog stop in position to hold the dog in a position to be struck by the dagger when the lay beam beats up; a detector bed attached to the breast bearn z-a detector slide slidable therein in a direction substantially the same as the movement of ti e lay beam; a slide return spring; a detector finger pivoted to the slide so as to engage a bobbin and to swing horizontally beam on one end or": which is a battery for bob-s bins and apivoted bobbin transferhammeropcrable by and to which is pivoted a depending dog; of a dog spring and a dog stop in position to hold the dog in a position to be struck by the dagger when the lay beam heats up; a detector bed attached to the breast beam; a detector slide slidable therein in a direction substantially the same as the movement of the lay beam; a slide return spring; a detector linger pivoted to the slide so as to engage a bobbin and to swing sideways; a detector linger return spring; and a direct connection between the detector slide and the dog of such character that when the slide moves forward it will depress the dog and when the dog is forced forward horizontally it will move the slide forward at a faster rate.

8. The combination with a loom having a lay beam which carries a dagger, and a breast beam on one end of which is a battery for bobbins and a pivoted bobbin transfer hammer operable by and to which is pivoted a depending dog; of a dog spring and a dog stop in position to hold the dog in a position to be struck by the dagger when the lay beam heats up; a detector bed attached to the breast beam; a detector slide slidable therein in a direction substantially the same as the move merit of the lay beam; a slide return spring; a detector linger pivoted to the slide so as to engage a bobbin and to swing sideways; a detector linger return spring; and a direct connection between the detector slide and the dog of such character that when the slide moves forward it will depress the dog and when the dog is struck by the hunter, there is enough yielding so that the slide is thrown forward and the detector finger is withdrawn k from the shuttle sufficiently to allow a new bobbin to replace the old.

HAROLD M. JEFFREY. 

